Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 66 for “"Poultry or Avian Science"”.
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An Assessment of Direct Mortality to Avifauna from Wind Energy Facilities in North Dakota and South Dakota
… without negative impacts to the environment. Moreover, the effects of wind energy development to wildlife are unique to each wind farm. However, these effects remain poorly understood and require additional research to elucidate and quantify. The Northern Great Plains (NGP) contains much of the …
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Determination of methionine and lysine requirements of growing broilers using the Ideal Protein Concept
… to evaluate the responses of broiler performance to Lysine (Lys) and Methionine (Met) during the starter, grower, and finisher feeding phases. All the experimental diets were formulated based on the Ideal Protein Concept.</p> <p>Experiment 1 evaluated the responses to Lys and Met on live …
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EFFECT OF PROTEASE SUPPLEMENTATION IN BROILER FEED ON GROWTH PERFORMANCE, CARCASS YIELD AND TOTAL NITROGEN RETENTION IN FECAL MATTER AND LITTER
… supplementation on commercial broiler performance, carcass yield, and nitrogen retention in fecal matter and litter. Total of 4,800 female (Ross 708) birds split into 96 floor pens, and randomly assigned to one of four treatment groups. Birds were placed within 96, 5’x10’ floor pens in a …
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Evaluation of Two Neonatal Challenge Models for Broiler Chickens and their Effects on Early Performance Parameters
<p>Formaldehyde fumigation in poultry hatch cabinets has been utilized for sanitation of hatching eggs for over a century. Formaldehyde is utilized to minimize pathogenic microbes on the surface of the egg as well as the microbial bloom during the hatching process. While formaldehyde is effective, …
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Development and Evaluation of Selected Chemoprophylaxis Candidates and a Candidate Live-Attenuated Vaccine for Prevention of Histomoniasis in Turkeys
… has increased in prevalence due to the regulatory ban of prophylactics and therapeutics within the past 30 years. The objective of this thesis was to evaluate the efficacy of selected dietary chemoprophylaxis candidates as well as an in vitro live-attenuated vaccine candidate Histomonas …
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Poultry Performance and Food Safety Impacts of Selected Organic Acids and Probiotics
… production parameters and controlling foodborne pathogens have been challenges to the poultry industry. <em>Salmonella</em> has been the most common bacterial pathogen in laboratory confirmed foodborne illness cases, and contaminated poultry and poultry products have been identified as the …
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Development of a Biofilm Model for Evaluating Poultry Drinking Water Sanitation Procedures
… to evaluate biofilm growth on polyvinylchloride (PVC) surfaces when exposed to treated/untreated water sources (test water) that are typically supplied in commercial barns. PVC test coupons (15.16 cm2) were immersed in test water in beakers to grow biofilm. Test water supplies were …
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Meat Quality of Broiler Breast Fillets with White Striping and Woody Breast Muscle Myopathies
<p>The global poultry industry has been faced with emerging broiler breast meat quality issues known as white striping and woody breast. Two experiments were conducted to evaluate effects of white striping and woody breast hardness on meat quality traits in broiler breast fillets. Birds were …
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Analyzing the Longevity of Sperm Within the Female Japanese Quail by Assessing Sperm Penetration of the Perivitelline Layer Under Optimal and Suboptimal Conditions.
<p>After mating, birds have the ability to store semen within the female reproductive tract. The sperm storage tubules will store and subsequently release semen to travel up the oviduct. Sperm cells that make the trek up the oviduct have a chance to fertilize the ovum. These sperm cells will bind …
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Physical and Biochemical Factors Affecting Breast Fillet Tenderness in Broilers Reared For Divergent Market Demands
… trends have dictated that broilers be reared for divergent market demands for decades. Also, broiler genetic strains have been adapted to meet market demands which include: genetic selection for improved breast meat, the practice of growing birds to older ages and greater market weights to meet …
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Responsiveness of Cobb MV × 700 Broilers to Dietary Amino Acid and Energy Density
… to the industry, it is of paramount importance to understand their nutritional digressions from previous and other modern broilers. In particular, amino acids (AA) and dietary energy have been identified as key drivers of live performance and carcass composition. In addition, increased …
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Effect of Cooking Method on Meat Texture in Normal and Woody Broiler Breast Fillets Using Instrumental Analysis and Descriptive Sensory Analysis
… in terms of meat quality. Meat quality has deteriorated with the rise in the occurrence of muscle myopathies. Conditions such as woody breast, which is described as pale and bulging areas of distinct hardness, compromise both the textural and technological traits that have been associated with …
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Comparison of Potential Salmonella Portals of Entry and Tissue Distribution Following Challenge of Poultry
… that transmission by the fecal-respiratory route may be a viable portal of entry for Salmonella and could explain some clinical impressions of relatively low-dose infectivity under field conditions in relation to the requisite high oral challenge dose that is typically required for …
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Protein Utilization and Requirements in Broiler Breeders
<p>Advances in the genetics of poultry have created unintended consequences to the broiler breeder industry. Excessive weight has been shown to have many negative effects, including double hierarchies, multiple ovulations, and fatty liver. In an effort to curb excessive body weight gain, both the …
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Intestinal Inflammation Model Inducing Gut Leakage by Different Methods in Broiler Chickens Using FITC-d as a Marker
… intestinal homeostasis, thus improving performance. Due to increasing restrictions regarding the use of AGP, precise and high throughput enteric inflammation models and markers to search for effective alternatives are urgently needed. Oral administration of fluorescein isothiocyanate dextran …
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A Comparative Analysis of Feed and Environmental Factors on Broiler Growth in the United States
… production in the United States has become an important industry within the last half century. As the demand for poultry continues to increase and the concern of climate change also increases, it will become an important part of the industry to become more sustainable. This study uses a feed …
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Divergent Selection for Water Conversion Ratio in Broiler Populations
… future, all aspects of agriculture must become more efficient. Two strategies were explored. The potential of improving water efficiency in broilers was examined. The first strategy was to develop a more efficient and accurate method for measuring water consumption/inputs in agriculture. To date, …
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The Recovery of Protein from Egg Yolk Protein Extraction Granule Byproduct
… food, cosmetic, and biotechnology industries for their rheological and bioactive properties. Much of the potential for the added value is in individual components of the egg, rather than the whole egg. At low speed centrifugation, yolk separates into two distinct fractions—granules and plasma. …
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Evaluation of Water Sanitation Options for Poultry Production
<p>An evaluation of poultry farm water supplies was conducted to determine the value and impact of water system sanitation practices in commercial broiler houses on microbial levels. Water line cleaning between flocks using concentrated disinfectant solution before placing chicks reduced biofilms …
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